1 /* This file contains definitions for deprecated features. When you
2 deprecate something, move it here when that is feasible.
5 #ifndef SCM_DEPRECATED_H
6 #define SCM_DEPRECATED_H
8 /* Copyright (C) 2003,2004, 2005, 2006, 2007 Free Software Foundation, Inc.
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "libguile/__scm.h"
26 #include "libguile/strings.h"
28 #if (SCM_ENABLE_DEPRECATED == 1)
30 /* From eval.h: Macros for handling ilocs. These were deprecated in guile
31 * 1.7.0 on 2004-04-22. */
32 #define SCM_IFRINC (0x00000100L)
33 #define SCM_ICDR (0x00080000L)
34 #define SCM_IFRAME(n) ((long)((SCM_ICDR-SCM_IFRINC)>>8) \
35 & (SCM_UNPACK (n) >> 8))
36 #define SCM_IDIST(n) (SCM_UNPACK (n) >> 20)
37 #define SCM_ICDRP(n) (SCM_ICDR & SCM_UNPACK (n))
40 /* From tags.h: Macros to access internal symbol names of isyms. Deprecated
41 * in guile 1.7.0 on 2004-04-22. */
42 SCM_API char *scm_isymnames[];
43 #define SCM_ISYMNUM(n) 0
44 #define SCM_ISYMCHARS(n) "#@<deprecated>"
47 /* From tags.h: Macro checking for two tc16 types that are allocated to differ
48 * only in the 's'-bit. Deprecated in guile 1.7.0 on 2003-09-21. */
49 #define SCM_TYP16S(x) (0xfeff & SCM_CELL_TYPE (x))
52 /* From numbers.h: Macros checking for types, but avoiding a redundant check
53 * for !SCM_IMP. These were deprecated in guile 1.7.0 on 2003-09-06. */
54 #define SCM_SLOPPY_INEXACTP(x) (SCM_TYP16S (x) == scm_tc16_real)
55 #define SCM_SLOPPY_REALP(x) (SCM_TYP16 (x) == scm_tc16_real)
56 #define SCM_SLOPPY_COMPLEXP(x) (SCM_TYP16 (x) == scm_tc16_complex)
59 /* From eval.h: Macros for handling ilocs. These were deprecated in guile
60 * 1.7.0 on 2003-06-04. */
61 #define SCM_ILOC00 SCM_MAKE_ITAG8(0L, scm_tc8_iloc)
62 #define SCM_IDINC (0x00100000L)
63 #define SCM_IDSTMSK (-SCM_IDINC)
66 /* From eval.h: Error messages of the evaluator. These were deprecated in
67 * guile 1.7.0 on 2003-06-02. */
68 SCM_API const char scm_s_expression[];
69 SCM_API const char scm_s_test[];
70 SCM_API const char scm_s_body[];
71 SCM_API const char scm_s_bindings[];
72 SCM_API const char scm_s_variable[];
73 SCM_API const char scm_s_clauses[];
74 SCM_API const char scm_s_formals[];
77 /* From eval.h: Helper macros for evaluation and application. These were
78 * deprecated in guile 1.7.0 on 2003-06-02. */
79 #define SCM_EVALIM2(x) \
80 ((scm_is_eq ((x), SCM_EOL) \
81 ? scm_misc_error (NULL, scm_s_expression, SCM_EOL), 0 \
84 #define SCM_EVALIM(x, env) (SCM_ILOCP (x) \
85 ? *scm_ilookup ((x), env) \
87 #define SCM_XEVAL(x, env) (scm_i_eval_x ((x), (env)))
88 #define SCM_XEVALCAR(x, env) (SCM_SYMBOLP (SCM_CAR (x)) \
89 ? *scm_lookupcar (x, env, 1) \
90 : scm_i_eval_x (SCM_CAR (x), (env)))
93 #define scm_substring_move_left_x scm_substring_move_x
94 #define scm_substring_move_right_x scm_substring_move_x
96 #define scm_sizet size_t
98 SCM_API SCM scm_wta (SCM arg, const char *pos, const char *s_subr);
101 #define SCM_OUTOFRANGE 10
102 #define SCM_NALLOC 11
104 SCM_API void scm_register_module_xxx (char *module_name, void *init_func);
105 SCM_API SCM scm_registered_modules (void);
106 SCM_API SCM scm_clear_registered_modules (void);
108 SCM_API SCM scm_protect_object (SCM obj);
109 SCM_API SCM scm_unprotect_object (SCM obj);
111 #define SCM_SETAND_CAR(x, y) \
112 (SCM_SETCAR ((x), SCM_PACK (SCM_UNPACK (SCM_CAR (x)) & (y))))
113 #define SCM_SETOR_CAR(x, y)\
114 (SCM_SETCAR ((x), SCM_PACK (SCM_UNPACK (SCM_CAR (x)) | (y))))
115 #define SCM_SETAND_CDR(x, y)\
116 (SCM_SETCDR ((x), SCM_PACK (SCM_UNPACK (SCM_CDR (x)) & (y))))
117 #define SCM_SETOR_CDR(x, y)\
118 (SCM_SETCDR ((x), SCM_PACK (SCM_UNPACK (SCM_CDR (x)) | (y))))
119 #define SCM_FREEP(x) (SCM_FREE_CELL_P (x))
120 #define SCM_NFREEP(x) (!SCM_FREE_CELL_P (x))
121 #define SCM_GC8MARKP(x) SCM_GC_MARK_P (x)
122 #define SCM_SETGC8MARK(x) SCM_SET_GC_MARK (x)
123 #define SCM_CLRGC8MARK(x) SCM_CLEAR_GC_MARK (x)
124 #define SCM_GCTYP16(x) SCM_TYP16 (x)
125 #define SCM_GCCDR(x) SCM_CDR (x)
126 SCM_API void scm_remember (SCM * ptr);
128 SCM_API SCM scm_the_root_module (void);
129 SCM_API SCM scm_make_module (SCM name);
130 SCM_API SCM scm_ensure_user_module (SCM name);
131 SCM_API SCM scm_load_scheme_module (SCM name);
133 #define scm_port scm_t_port
134 #define scm_ptob_descriptor scm_t_ptob_descriptor
135 #define scm_port_rw_active scm_t_port_rw_active
137 SCM_API SCM scm_close_all_ports_except (SCM ports);
139 #define scm_rstate scm_t_rstate
140 #define scm_rng scm_t_rng
142 #define SCM_SLOPPY_CONSP(x) ((1 & SCM_CELL_TYPE (x)) == 0)
143 #define SCM_SLOPPY_NCONSP(x) (!SCM_SLOPPY_CONSP(x))
145 #define scm_tc7_ssymbol scm_tc7_symbol
146 #define scm_tc7_msymbol scm_tc7_symbol
147 #define scm_tcs_symbols scm_tc7_symbol
149 SCM_API SCM scm_makstr (size_t len, int);
150 SCM_API SCM scm_makfromstr (const char *src, size_t len, int);
152 SCM_API SCM scm_variable_set_name_hint (SCM var, SCM hint);
153 SCM_API SCM scm_builtin_variable (SCM name);
155 SCM_API SCM scm_internal_with_fluids (SCM fluids, SCM vals,
156 SCM (*cproc)(void *), void *cdata);
158 SCM_API SCM scm_make_gsubr (const char *name, int req, int opt, int rst,
160 SCM_API SCM scm_make_gsubr_with_generic (const char *name,
167 SCM_API SCM scm_create_hook (const char* name, int n_args);
169 #define SCM_LIST0 SCM_EOL
170 #define SCM_LIST1(e0) scm_cons ((e0), SCM_EOL)
171 #define SCM_LIST2(e0, e1) scm_cons2 ((e0), (e1), SCM_EOL)
172 #define SCM_LIST3(e0, e1, e2) scm_cons ((e0), SCM_LIST2 ((e1), (e2)))
173 #define SCM_LIST4(e0, e1, e2, e3)\
174 scm_cons2 ((e0), (e1), SCM_LIST2 ((e2), (e3)))
175 #define SCM_LIST5(e0, e1, e2, e3, e4)\
176 scm_cons ((e0), SCM_LIST4 ((e1), (e2), (e3), (e4)))
177 #define SCM_LIST6(e0, e1, e2, e3, e4, e5)\
178 scm_cons2 ((e0), (e1), SCM_LIST4 ((e2), (e3), (e4), (e5)))
179 #define SCM_LIST7(e0, e1, e2, e3, e4, e5, e6)\
180 scm_cons ((e0), SCM_LIST6 ((e1), (e2), (e3), (e4), (e5), (e6)))
181 #define SCM_LIST8(e0, e1, e2, e3, e4, e5, e6, e7)\
182 scm_cons2 ((e0), (e1), SCM_LIST6 ((e2), (e3), (e4), (e5), (e6), (e7)))
183 #define SCM_LIST9(e0, e1, e2, e3, e4, e5, e6, e7, e8)\
185 SCM_LIST8 ((e1), (e2), (e3), (e4), (e5), (e6), (e7), (e8)))
187 #define scm_listify scm_list_n
189 SCM_API SCM scm_sloppy_memq (SCM x, SCM lst);
190 SCM_API SCM scm_sloppy_memv (SCM x, SCM lst);
191 SCM_API SCM scm_sloppy_member (SCM x, SCM lst);
193 SCM_API SCM scm_read_and_eval_x (SCM port);
195 #define scm_subr_entry scm_t_subr_entry
197 #define SCM_SUBR_DOC(x) SCM_BOOL_F
199 SCM_API SCM scm_make_subr (const char *name, int type, SCM (*fcn) ());
200 SCM_API SCM scm_make_subr_with_generic (const char *name,
204 SCM_API SCM scm_make_subr_opt (const char *name,
209 SCM_API SCM scm_call_catching_errors (SCM (*thunk)(), SCM (*err_filter)(),
212 SCM_API long scm_make_smob_type_mfpe (char *name, size_t size,
214 size_t (*free) (SCM),
215 int (*print) (SCM, SCM,
217 SCM (*equalp) (SCM, SCM));
219 SCM_API void scm_set_smob_mfpe (long tc,
221 size_t (*free) (SCM),
222 int (*print) (SCM, SCM, scm_print_state*),
223 SCM (*equalp) (SCM, SCM));
225 SCM_API SCM scm_strprint_obj (SCM obj);
226 SCM_API SCM scm_read_0str (char *expr);
227 SCM_API SCM scm_eval_0str (const char *expr);
229 SCM_API char *scm_i_object_chars (SCM);
231 #define SCM_CHARS(x) scm_i_object_chars(x)
232 #define SCM_UCHARS(x) ((unsigned char *)SCM_CHARS(x))
234 SCM_API long scm_i_object_length (SCM);
236 #define SCM_LENGTH(x) scm_i_object_length(x)
238 #define scm_strhash(str, len, n) (scm_string_hash ((str), (len)) % (n))
240 SCM_API SCM scm_sym2ovcell_soft (SCM sym, SCM obarray);
241 SCM_API SCM scm_sym2ovcell (SCM sym, SCM obarray);
242 SCM_API SCM scm_intern_obarray_soft (const char *name, size_t len,
243 SCM obarray, unsigned int softness);
244 SCM_API SCM scm_intern_obarray (const char *name, size_t len, SCM obarray);
245 SCM_API SCM scm_symbol_value0 (const char *name);
247 SCM_API SCM scm_string_to_obarray_symbol (SCM o, SCM s, SCM softp);
248 SCM_API SCM scm_intern_symbol (SCM o, SCM s);
249 SCM_API SCM scm_unintern_symbol (SCM o, SCM s);
250 SCM_API SCM scm_symbol_binding (SCM o, SCM s);
252 /* This name has been reused for real uninterned symbols. */
253 SCM_API SCM scm_symbol_interned_p (SCM o, SCM s);
255 SCM_API SCM scm_symbol_bound_p (SCM o, SCM s);
256 SCM_API SCM scm_symbol_set_x (SCM o, SCM s, SCM v);
258 SCM_API SCM scm_gentemp (SCM prefix, SCM obarray);
260 #define SCM_OPDIRP(x) (SCM_DIRP (x) && (SCM_DIR_OPEN_P (x)))
261 #define scm_fport scm_t_fport
262 #define scm_option scm_t_option
263 #define scm_srcprops scm_t_srcprops
264 #define scm_srcprops_chunk scm_t_srcprops_chunk
265 #define scm_info_frame scm_t_info_frame
266 #define scm_stack scm_t_stack
267 #define scm_array scm_t_array
268 #define scm_array_dim scm_t_array_dim
269 #define SCM_ARRAY_CONTIGUOUS SCM_ARRAY_FLAG_CONTIGUOUS
270 #define SCM_FUNC_NAME (scm_makfrom0str (FUNC_NAME))
272 #define SCM_WTA(pos, scm) \
273 do { scm_wta (scm, (char *) pos, FUNC_NAME); } while (0)
275 #define RETURN_SCM_WTA(pos, scm) \
276 do { return scm_wta (scm, (char *) pos, FUNC_NAME); } while (0)
278 #define SCM_VALIDATE_NUMBER_COPY(pos, z, cvar) \
280 if (SCM_I_INUMP (z)) \
281 cvar = (double) SCM_I_INUM (z); \
282 else if (SCM_REALP (z)) \
283 cvar = SCM_REAL_VALUE (z); \
284 else if (SCM_BIGP (z)) \
285 cvar = scm_i_big2dbl (z); \
289 SCM_WRONG_TYPE_ARG (pos, z); \
293 #define SCM_VALIDATE_NUMBER_DEF_COPY(pos, number, def, cvar) \
295 if (SCM_UNBNDP (number)) \
298 SCM_VALIDATE_NUMBER_COPY(pos, number, cvar); \
301 #define SCM_VALIDATE_OPDIR(pos, port) SCM_MAKE_VALIDATE (pos, port, OPDIRP)
303 /* Deprecated because we can not safely cast a SCM* to a scm_t_bits*
306 #define SCM_CELL_WORD_LOC(x, n) ((scm_t_bits*)SCM_CELL_OBJECT_LOC((x),(n)))
308 /* Users shouldn't know about INUMs.
311 SCM_API SCM scm_i_makinum (scm_t_signed_bits val);
312 SCM_API int scm_i_inump (SCM obj);
313 SCM_API scm_t_signed_bits scm_i_inum (SCM obj);
315 #define SCM_MAKINUM(x) scm_i_makinum(x)
316 #define SCM_INUM(x) scm_i_inum(x)
317 #define SCM_INUMP(x) scm_i_inump(x)
318 #define SCM_NINUMP(x) (!SCM_INUMP(x))
320 #define SCM_VALIDATE_INUM(pos, k) SCM_MAKE_VALIDATE_MSG (pos, k, INUMP, "exact integer")
322 #define SCM_VALIDATE_INUM_COPY(pos, k, cvar) \
324 SCM_ASSERT (SCM_I_INUMP (k), k, pos, FUNC_NAME); \
325 cvar = SCM_I_INUM (k); \
328 #define SCM_VALIDATE_BIGINT(pos, k) SCM_MAKE_VALIDATE_MSG (pos, k, BIGP, "bignum")
330 #define SCM_VALIDATE_INUM_MIN(pos, k, min) \
332 SCM_ASSERT (SCM_I_INUMP(k), k, pos, FUNC_NAME); \
333 SCM_ASSERT_RANGE (pos, k, (SCM_I_INUM (k) >= min)); \
336 #define SCM_VALIDATE_INUM_MIN_COPY(pos, k, min, cvar) \
338 SCM_ASSERT (SCM_I_INUMP (k), k, pos, FUNC_NAME); \
339 SCM_ASSERT_RANGE (pos, k, (SCM_I_INUM (k) >= min)); \
340 cvar = SCM_INUM (k); \
343 #define SCM_VALIDATE_INUM_MIN_DEF_COPY(pos, k, min, default, cvar) \
345 if (SCM_UNBNDP (k)) \
346 k = SCM_I_MAKINUM (default); \
347 SCM_ASSERT (SCM_I_INUMP (k), k, pos, FUNC_NAME); \
348 SCM_ASSERT_RANGE (pos, k, (SCM_I_INUM (k) >= min)); \
349 cvar = SCM_INUM (k); \
352 #define SCM_VALIDATE_INUM_DEF(pos, k, default) \
354 if (SCM_UNBNDP (k)) \
355 k = SCM_I_MAKINUM (default); \
356 else SCM_ASSERT (SCM_I_INUMP (k), k, pos, FUNC_NAME); \
359 #define SCM_VALIDATE_INUM_DEF_COPY(pos, k, default, cvar) \
361 if (SCM_UNBNDP (k)) \
363 k = SCM_I_MAKINUM (default); \
368 SCM_ASSERT (SCM_I_INUMP (k), k, pos, FUNC_NAME); \
369 cvar = SCM_INUM (k); \
374 #define SCM_VALIDATE_INUM_RANGE(pos, k, low, high) \
375 do { SCM_ASSERT(SCM_I_INUMP(k), k, pos, FUNC_NAME); \
376 SCM_ASSERT_RANGE(pos, k, \
377 (SCM_I_INUM (k) >= low && \
378 SCM_I_INUM (k) < high)); \
381 #define SCM_VALIDATE_INUM_RANGE_COPY(pos, k, low, high, cvar) \
383 SCM_ASSERT (SCM_INUMP (k), k, pos, FUNC_NAME); \
384 SCM_ASSERT_RANGE (pos, k, low <= SCM_INUM (k) && SCM_INUM (k) < high); \
385 cvar = SCM_INUM (k); \
388 #define SCM_STRING_COERCE_0TERMINATION_X(x) (x)
390 /* XXX - buggy interface, STR might not be large enough.
392 Converts the given Scheme string OBJ into a C string, containing a copy
393 of OBJ's content with a trailing null byte. If LENP is non-NULL, set
394 *LENP to the string's length.
396 When STR is non-NULL it receives the copy and is returned by the function,
397 otherwise new memory is allocated and the caller is responsible for
398 freeing it via free(). If out of memory, NULL is returned.
400 Note that Scheme strings may contain arbitrary data, including null
401 characters. This means that null termination is not a reliable way to
402 determine the length of the returned value. However, the function always
403 copies the complete contents of OBJ, and sets *LENP to the length of the
404 scheme string (if LENP is non-null).
406 SCM_API char *scm_c_string2str (SCM obj, char *str, size_t *lenp);
408 /* XXX - buggy interface, you don't know how many bytes have been copied.
410 Copy LEN characters at START from the Scheme string OBJ to memory
411 at STR. START is an index into OBJ; zero means the beginning of
412 the string. STR has already been allocated by the caller.
414 If START + LEN is off the end of OBJ, silently truncate the source
415 region to fit the string. If truncation occurs, the corresponding
416 area of STR is left unchanged.
418 SCM_API char *scm_c_substring2str (SCM obj, char *str, size_t start, size_t len);
420 SCM_API char *scm_c_symbol2str (SCM obj, char *str, size_t *lenp);
422 /* Deprecated because the names belong to what is now
423 scm_truncate_number and scm_round_number.
425 SCM_API double scm_truncate (double x);
426 SCM_API double scm_round (double x);
428 /* Deprecated because we don't want people to access the internal
429 representation of strings directly.
432 #define SCM_VALIDATE_STRING_COPY(pos, str, cvar) \
434 SCM_ASSERT (SCM_STRINGP (str), str, pos, FUNC_NAME); \
435 cvar = SCM_STRING_CHARS(str); \
438 /* validate a string and optional start/end arguments which default to
439 0/string-len. this is unrelated to the old shared substring
440 support, so please do not deprecate it :) */
441 #define SCM_VALIDATE_SUBSTRING_SPEC_COPY(pos_str, str, c_str, \
442 pos_start, start, c_start,\
443 pos_end, end, c_end) \
445 SCM_VALIDATE_STRING_COPY (pos_str, str, c_str);\
446 c_start = SCM_UNBNDP(start)? 0 : scm_to_size_t (start);\
447 c_end = SCM_UNBNDP(end)? SCM_STRING_LENGTH(str) : scm_to_size_t (end);\
448 SCM_ASSERT_RANGE (pos_start, start,\
450 && (size_t) c_start <= SCM_STRING_LENGTH (str));\
451 SCM_ASSERT_RANGE (pos_end, end,\
453 && (size_t) c_end <= SCM_STRING_LENGTH (str));\
456 /* Deprecated because we don't want people to access the internals of
460 SCM_API char *scm_i_deprecated_symbol_chars (SCM sym);
461 SCM_API size_t scm_i_deprecated_symbol_length (SCM sym);
463 #define SCM_SYMBOL_CHARS(x) scm_i_deprecated_symbol_chars(x)
464 #define SCM_SYMBOL_LENGTH(x) scm_i_deprecated_symbol_length(x)
466 /* Deprecated because the macros used to evaluate the arguments more
467 than once and because the symbol of a keyword now has no dash.
470 SCM_API int scm_i_keywordp (SCM obj);
471 SCM_API SCM scm_i_keywordsym (SCM keyword);
473 #define SCM_KEYWORDP(x) scm_i_keywordp(x)
474 #define SCM_KEYWORDSYM(x) scm_i_keywordsym(x)
476 /* Deprecated because we don't want to hand out unprotected pointers
477 to arrays, vectors, etc. */
479 #define SCM_VECTOR_MAX_LENGTH ((1L << 24) - 1)
481 SCM_API int scm_i_vectorp (SCM x);
482 SCM_API unsigned long scm_i_vector_length (SCM x);
483 SCM_API const SCM *scm_i_velts (SCM x);
484 SCM_API SCM *scm_i_writable_velts (SCM x);
485 SCM_API SCM scm_i_vector_ref (SCM x, size_t idx);
486 SCM_API void scm_i_vector_set (SCM x, size_t idx, SCM val);
487 SCM_API SCM scm_vector_equal_p (SCM x, SCM y);
489 #define SCM_VECTORP(x) scm_i_vectorp(x)
490 #define SCM_VECTOR_LENGTH(x) scm_i_vector_length(x)
491 #define SCM_VELTS(x) scm_i_velts(x)
492 #define SCM_WRITABLE_VELTS(x) scm_i_writable_velts(x)
493 #define SCM_VECTOR_REF(x,y) scm_i_vector_ref(x,y)
494 #define SCM_VECTOR_SET(x,y,z) scm_i_vector_set(x,y,z)
496 typedef scm_i_t_array scm_t_array;
498 SCM_API int scm_i_arrayp (SCM a);
499 SCM_API size_t scm_i_array_ndim (SCM a);
500 SCM_API int scm_i_array_contp (SCM a);
501 SCM_API scm_t_array *scm_i_array_mem (SCM a);
502 SCM_API SCM scm_i_array_v (SCM a);
503 SCM_API size_t scm_i_array_base (SCM a);
504 SCM_API scm_t_array_dim *scm_i_array_dims (SCM a);
506 #define SCM_ARRAYP(a) scm_i_arrayp(a)
507 #define SCM_ARRAY_NDIM(a) scm_i_array_ndim(a)
508 #define SCM_ARRAY_CONTP(a) scm_i_array_contp(a)
509 #define SCM_ARRAY_MEM(a) scm_i_array_mem(a)
510 #define SCM_ARRAY_V(a) scm_i_array_v(a)
511 #define SCM_ARRAY_BASE(a) scm_i_array_base(a)
512 #define SCM_ARRAY_DIMS(a) scm_i_array_dims(a)
514 /* Deprecated because they should not be lvalues and we want people to
515 use the official interfaces.
518 #define scm_cur_inp scm_i_cur_inp ()
519 #define scm_cur_outp scm_i_cur_outp ()
520 #define scm_cur_errp scm_i_cur_errp ()
521 #define scm_cur_loadp scm_i_cur_loadp ()
522 #define scm_progargs scm_i_progargs ()
523 #define scm_dynwinds scm_i_deprecated_dynwinds ()
524 #define scm_last_debug_frame scm_i_deprecated_last_debug_frame ()
525 #define scm_stack_base scm_i_stack_base ()
527 SCM_API SCM scm_i_cur_inp (void);
528 SCM_API SCM scm_i_cur_outp (void);
529 SCM_API SCM scm_i_cur_errp (void);
530 SCM_API SCM scm_i_cur_loadp (void);
531 SCM_API SCM scm_i_progargs (void);
532 SCM_API SCM scm_i_deprecated_dynwinds (void);
533 SCM_API scm_t_debug_frame *scm_i_deprecated_last_debug_frame (void);
534 SCM_API SCM_STACKITEM *scm_i_stack_base (void);
536 /* Deprecated because it evaluates its argument twice.
538 #define SCM_FLUIDP(x) scm_i_fluidp (x)
539 SCM_API int scm_i_fluidp (SCM x);
541 /* In the old days, SCM_CRITICAL_SECTION_START stopped signal handlers
542 from running, since in those days the handler directly ran scheme
543 code, and that had to be avoided when the heap was not in a
544 consistent state etc. And since the scheme code could do a stack
545 swapping new continuation etc, signals had to be deferred around
546 various C library functions which were not safe or not known to be
547 safe to swap away, which was a lot of stuff.
549 These days signals are implemented with asyncs and don't directly
550 run scheme code in the handler, but hold it until an SCM_TICK etc
551 where it will be safe. This means interrupt protection is not
552 needed and SCM_CRITICAL_SECTION_START / SCM_CRITICAL_SECTION_END is
553 something of an anachronism.
555 What past SCM_CRITICAL_SECTION_START usage also did though was
556 indicate code that was not reentrant, ie. could not be reentered by
557 signal handler code. The present definitions are a mutex lock,
558 affording that reentrancy protection against the new guile 1.8
559 free-running posix threads.
561 One big problem with the present defintions though is that code which
562 throws an error from within a DEFER/ALLOW region will leave the
563 defer_mutex locked and hence hang other threads that attempt to enter a
564 similar DEFER/ALLOW region.
567 SCM_API void scm_i_defer_ints_etc (void);
568 #define SCM_DEFER_INTS scm_i_defer_ints_etc ()
569 #define SCM_ALLOW_INTS scm_i_defer_ints_etc ()
570 #define SCM_REDEFER_INTS scm_i_defer_ints_etc ()
571 #define SCM_REALLOW_INTS scm_i_defer_ints_etc ()
573 /* Deprecated since they are unnecessary and had not been documented.
575 SCM_API SCM scm_guard (SCM guardian, SCM obj, int throw_p);
576 SCM_API SCM scm_get_one_zombie (SCM guardian);
578 /* Deprecated since guardians no longer have these special features.
580 SCM_API SCM scm_destroy_guardian_x (SCM guardian);
581 SCM_API SCM scm_guardian_greedy_p (SCM guardian);
582 SCM_API SCM scm_guardian_destroyed_p (SCM guardian);
584 void scm_i_init_deprecated (void);
588 #endif /* SCM_DEPRECATED_H */